4. Assuming x is in R1, y in R2, z in R3 and the result in RO, write and test an ARM assembly language program to evaluate the following expressions:| (a) 3* x2 + 5* x [7] (b) 2 * x2 +6*x*y+3+ y2 [9] (c) x3 4* x2 + 3* x + 8 [8] (d) 3* x* - 5* x 16 * y* * 24 [9] 2 Page Using the assembly source code below as a starting point, modify the code to include code that solves all four problems. Test your code by setting x = 5, y = 6 and z=2. AREA MyCode, CODE, READONLY ENTRY ; start of code LDR R1, =5 LDR R2, =6 ; x = 5 ; y = 6 ; compute x*x + y + 4 (35 or 0x23) MUL RO, R1, R1 ADD RO, RO, R2 ADD RO, RO, #4 ; RO = x*x ; RO = x*x + y x*x + y + 4 ; RO = i ; add your code here i LBL ; infinite loop to end programme END